tonight about the cold case disappearance of 10-year-old kevin collins. for the first time, san francisco police are publicly acknowledging a suspect, or to use their term, a person of interest. the man, now deceased had many aliases and a criminal record. >> reporter: 10-year-old kevin collins remains frozen in time. he disappeared while waiting for a bus after school in san francisco's haight-ashbury neighborhood in 1984. >> this is a case that haunts the san francisco police department and the city of san francisco. >> reporter: today police revealed new details about wayne jackson. police say he fits the physical description of the man collins was last seen talking to. >> he lived not far from where the abduction happened. he had a dog similar to the dog that the suspect was seen to have. >> reporter: at the time, eyewitnesses and a consense search of jackson's house failed to conclusively tie him to the case. jackson had five different identities, and a history of kidnapping, lewd acts, and sexual assaults against boys in canada, and one at fisherman's wharf in the years before colli